Pbpb isochron dating after patterson 1956 there are a number of useful isotope systems which constitute clocks in the rocks and are useful for geologic dating but if asked what is the most reliable and precise method for dating the earth and meteorites brent dalyrymple would point to lead isochrons.
The leadlead pbpb isochron dating method for determining the age of ancient rocks including meteorites is generally thought to be the more precise method for such.
dating the isochron method many radioactive dating methods are based on minute additions of daughter products to a rock or mineral in which a considerable amount.
In his discussion of isochron dating he states pp 108109 for all practical purposes the only way to move the isotopic compositions of samples from one isochron to another is by either radioactive decay through time or complete isotopic rehomogenization.
The age of the earth and the formation of the universe in addition to dating methods based lead would fall on the meteorite isochron if it had.
A dating method which uses such a plot to determine age is called an isochron dating method when isochron dating is mentioned in this faq.
Chemical dating chime dating chime method emp dating epma dating the chemical thupb isochron method chime involves dating of micrometerscale monazite.